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1、DEVELOPMENTAlternAtiveDrivesELECTRICMOTORTECHNOLOGYINAHIGH-PERFORMANCEAPPLICATIONWithitsBusinessUnitinsidee-Car,since2011,siemenshasagainpositioneditselfasasupplieranddevelopmentpartnertotheautomotivesector,andisnowintegratinganelectricdriveintotheFurtive-eGtbuilt bytheFrenchcompanyexagon.thefour-s
2、eatersportscoupé,poweredsolelybyabattery,willbepresentedattheiAA2013inaversionsimilartothatwhichwillgointoseriesproduction.startofproductionis scheduledforthebeginningof2014.thecompanybasedinerlangen(Germany)discussednumerousbasic decisionsthatultimatelyledtoselectingtwocoupledpermanent-magnetsynch
3、ronousmotorsspecificallydesignedforthepurpose.44AUtHOrsREQUIREMENTSBecauseitsmechanicalcommutatorre-quiresintensivemaintenance,theDCThedevelopmentofanelectricmotormotorconceptisonlyofsecondaryim-for abatteryelectricvehicle(BEV)pre-portance.Thesameappliestotheswitchedsentedtheengineerswithsomesig-rel
4、uctancemotorduetoitshighnoisenificantchallenges.Smallandlight,generation.Asaconsequence,thefocuswith thehighestpossibleefficiency,❶,todayisonpermanent-magnetsynchro-DR.TILOMOSERit shouldhaveadequatepower,yetstillnousmotors,electricallyexcitedsyn-isseniorKeyexpertConsultantatcostaslittleaspossible.T
5、heexpecta-chronousmotors,andinductionmotors.siemensAG,Corporatetechnology,tionsbecomeevenhigherifthisdriveinMunich(Germany).is tobeintegratedintoanexclusivePERMANENT-MAGNETsportscarliketheExagonFurtive-eGT.SYNCHRONOUSMOTORS–PMSMMaximumpowerandtorque,❷,arerequired,butwithoutcompromisingPermanent-mag
6、netsynchronousmotorsthe othermentionedproperties.Two(PMSM)aretechnologicallyconvincing.electricmotorsacceleratethefour-seaterThisisbecausethemagneticfieldgener-sportscoupéfrom0to100 km/hinatedbythepermanentmagnets(todayDR.FRANZX.WAGNERjust3.5 s.Themaximumspeediselec-almostexclusivelyrareearthmagnet
7、s)isisProjectManagerforDrivesintheinsidee-Car,BusinessUnitDrivetronicallylimitedto250 km/h.Powerconstant–nopowerisrequiredtogener-technologiesDivision,ofsiemensAGandtorquewerealwaysimportant;atetherotorfiel
